Apple dense lithium patent hints long-lived MacBooks, iPads

A new Apple patent filing published by the USPTO on Thursday could lead to significantly longer battery life in iPads, iPhones, MacBooks and other hardware with lithium-ion or lithium-ion packs. The use of a multi-step, constant-current, constant-voltage (CC-CV) would increase the capacity of the battery without physically increasing its size. Present-day batteries need to use longer anodes and cathodes to draw in more current and make the battery bigger....



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